package com.lq.springcloud.comtroller;



import com.lq.springcloud.entities.CommResult;
import com.lq.springcloud.entities.Payment;
import com.lq.springcloud.lb.LoadBalancer;

import lombok.extern.slf4j.Slf4j;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.client.discovery.DiscoveryClient;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;

import javax.annotation.Resource;
import java.net.URI;
import java.util.List;

@RestController
@Slf4j
public class OrderController {
//    public static final String PAYMENT_URL="http://localhost:8001";
    public static final String PAYMENT_URL="http://CLOUD-PAYMENT-SERVICE";
    @Resource
    private RestTemplate restTemplate;

    @Resource
    private LoadBalancer loadBalancer;

    @Resource
    private DiscoveryClient discoveryClient;


    @GetMapping("/consumer/payment/create")
    public CommResult<Payment> create(Payment payment){
        return  restTemplate.postForObject(PAYMENT_URL+"/payment/create",payment, CommResult.class);

    }
    @GetMapping("/consumer/payment/get/{id}")
    public CommResult<Payment> getCreate(@PathVariable("id") Long id){
        return  restTemplate.getForObject(PAYMENT_URL+"/payment/get/"+id,CommResult.class);

    }
    @GetMapping("/consumer/payment/lb")
    public String getPaymentLB(){
        List<ServiceInstance> instances = discoveryClient.getInstances("CLOUD-PAYMENT-SERVICE");
        if(instances==null || instances.size()<=0){
            return null;
        }
        System.out.println(instances);
        ServiceInstance instance = loadBalancer.instance(instances);
        URI uri = instance.getUri();
        System.out.println(uri);

        return restTemplate.getForObject(uri+"/payment/lb",String.class);
    }

}
